1. Basic Specifications
Model Name: Caterpillar 304CR Mini Hydraulic Excavator
Equipment Type: Crawler-type Micro/Small Hydraulic Excavator (Approx. 4-ton Class)
📌 Weight
Operating Weight: Approx. 4,090 kg (Transport Configuration)
Used Market Data: Approx. 4,935–10,850 lb (Approx. 4.5–4.9 ton Class)
Model Name: Caterpillar 304CR Mini Hydraulic Excavator
Equipment Type: Crawler-type Micro/Small Hydraulic Excavator (Approx. 4-ton Class)
📌 Weight
Operating Weight: Approx. 4,090 kg (Transport Configuration)
Used Market Data: Approx. 4,935–10,850 lb (Approx. 4.5–4.9 ton Class)
Engine Brand: Mitsubishi / Cat Internally Calibrated Version (4-cylinder Naturally Aspirated)
Engine Model: Mitsubishi S4L2-E2 (Recorded in Some Markets)
Displacement: Approx. 1.76 L (1760 cm³)
Net Power (ISO 9249): Approx. 26.5 – 31 kW (36 – 42 hp) @ 2400 rpm
Rated Power: Approx. 27.3 – 31 kW (Slight Variations by Market/Calibration)
| Parameter | Value |
| Maximum Digging Depth | ≈ 3,350 – 3,750 mm (Standard/Long Stick Combination) |
| Maximum Ground Reach | ≈ 5,580 – 5,950 mm |
| Maximum Dumping Height | ≈ 4,020 mm |
| Maximum Dumping Radius | ≈ 4,720 mm |
| Bucket Capacity | Approx. 0.08 – 0.12 m³ (Depending on Bucket Option) |
| Item | Value/Description |
| Main Hydraulic Pump Flow | Data Varies by Version; Approx. 40–80 L/min (Based on pump type). |
| Operating Pressure | Typical Hydraulic Working Pressure: Approx. 245 bar (Equipment/Travel) |
| Bucket Breakout Force (Approx.) | ~36.6 kN (Approx. 8,228 lbf) |
| Arm Digging Force (Approx.) | ~23.9 kN (Standard Bucket) |
| Swing Speed | ~9.3–9.8 rpm |
| Item | Value (Approx.) |
| Transport Length | ~5,170 – 5,710 mm |
| Transport Width | ~1,980 mm |
| Transport Height | ~2,460 – 2,550 mm |
| Track Shoe Width | ~400 mm |
| Ground Clearance | ~335 mm |
| Rear Swing Radius | Approx. 3,250–3,530 mm (Rear Overhang) |
Fuel Tank: Approx. 62–72 L
Hydraulic Oil Tank: Approx. 70–91 L
Engine Oil: Approx. 8.4 L
Cooling System: Approx. 6 L
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